coffield



(N Model.)

" P. T. COPPIELD.

WIND ENGINE. No. 264,862.

Patented septjz, 1882.

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NITED STATES 'BATENT -EEicE PETER. fr. COEEIELD, E sraiNeEiELD, oHIo,Assienon 0E ONE-HALE fro cHAELEs H. PAXsoN, oE sAME PLAGE.

WIND-ENGINE.

SPECIFICATION forming part of Letters Patent No. 264,862, datedSeptember 26, 1882.

Application filed July 6, 1882. (No model.)

To all whom t may concern:

Be it known that I, PETER T. GOEEIELD, a citizen ofthe United States,residing at Springlield, Clarke county, Ohiozu have invented certain newand useful Improvements in Vind- Engines, of which the following is afull, clear,

and eXact description.

end to the turn-table at l.

My invention relates to an improvement in wind-engines; and it consistsin arranging the turn-table so as to revolve freely on the derrick ormast, and providing it with an automatic brake operated by the wind,which will hold the wheel in the wind and prevent its walking round onthe gear out of the wind.

`Figure 1 is a side elevation of the wind-engine and brake. Fig. 2 is aside elevation of the brake and gearing. Fig.3shows the ratchet andspring-pawl within the brake-wheel. Fig. 4 is a horizontal section ofthe brake-wheel and eccentric brake and the toothed bed-plate.

Like letters of reference indicate the same parts in different figures.

A is the top of the mast or derrick supporting the engine. Y

B is a toothed bed-plate, firmly fixed to th top ot' the derrick. C isthe turntable, which `is balanced upon the bed-plate B, and revolvesfreely around the counter-shaft D.

On the top ot' the driving or counter shaft D, and rrnly fixed to it, isthe beveled-gear wheel E, geared with the beveled-gear wheel F, fastenedto the fan'sha'ft G.

H is the wind-wheel, made in any suitable form, and only partly shown inthe drawings.

I is the tubular shaft, fastened at its lower Within this tubular shaftI,'and Vsupported by it, is a straight rod, J. To the upper end of thisrod is attached a iiag-vane, K, made of sheet metal or other suitablematerial, and bent into the wind, as shown at K. To the lower end of therod J is firmly attached an eccentric, L.

On the lower side of the turn-table, and at the end opposite thewind-wheel, is pivoted the brake-wheel M, near the eccentric brake L,and so arranged that as the rod J is turned the brake L presses againstthe periphery of the wheelM and acts as a brake to hold it stationary.On the lower side of this brakewhcel M are interior ratchets, (shown atO.) Below the brake-wheel M, and revolving 0n the same pivot, is apinion, B, which is geared into the toothed bed-plate B. This pinion Itis also provided with a spring'pawl, which isinserted in the brake-wheelM, and operates upon the' wind against the brakewheelM and holds it Ystationary, the pinion cannot turn from left to right, being held by thevpawl and'ratchets, and the pinion being geared in the bed-plate B, thepinion, with the entire turn-table, is prevented frorn turning from leftto right. The Hag-vane is fastened to the rod J, and projects in thedirection of or over the wind-wheel slightly to the leeward, and curvingtoward the wheel. The wind-wheel, turn-table, Sto., swing freely from rightto left, when constructed as shown in the drawings of course thegearing may be inverted,) and withont a brake would swing from left toright round out of the wind; but as the wind strikes the wheel and turnsthe rod J and forces the eccentric brake L against the wheel M, holdingit stationary. The pawl and ratchets prevent the pinion from revolving,and its teeth, meshed with the teeth of the bed-plate, prevent theturn-table from swinging any farther, holding the wheel in the wind,forcingit to revolve the Vgear-wheel F and drive-shaft D, instead of theside of the tubular shaft l and pressing "against the pin or lug T,presses the rod J around, so as to keep the brake constantly in it alsostrikes the concave side ot the liag-vane operation. Shouldthe windchange and strike l the Hag-vane K on the convex side, the brake will beinstantly loosened and the wheel free to move round until it is againadjusted.

The dag-vane and brake may be used on a vaneiess wind-engine or inconnection with a vane.

To secure greater friction, the edge of the brake may be made convex andthe' periphery of the brake-wheel correspondingly concave or curved withleather; but any suitable substance or construction may be used.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. In a wind-engine having` a flag-vane and rotating pump-rod, thecombination, with the wind-wheelshaft and the rotating pump-rod, withconnecting` mechanism, of a curved llagvane provided with a brake at itslower end, whereby the wheel is held in the wind and prevented fromwalking around on its mast or derrick, substantially as described.

2. In a wind-engine, the toothed bed-plate B, in combination with thepinion R and-brakewheel M, arranged as and for the purpose specied.

3. The brake-wheel M and pinion It, so con- PETER T. COFFIELD.

Witnesses: v

CHARLES E. BROWN, J ERE F. TWoHIe.

